| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.4%
|
| 0 | None | 4 |
1.5%
|
| 1 | 11 |
4.1%
|
|
| 2 | 16 |
5.9%
|
|
| 3 | 6 |
2.2%
|
|
| 5 | 34 |
12.5%
|
|
| 7 | 3 |
1.1%
|
|
| 10 | 47 |
17.3%
|
|
| 12 | 2 |
0.7%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 25 |
9.2%
|
|
| 20 | 44 |
16.2%
|
|
| 25 | 21 |
7.7%
|
|
| 30 | 19 |
7%
|
|
| 35 | 2 |
0.7%
|
|
| 40 | 17 |
6.3%
|
|
| 45 | 1 |
0.4%
|
|
| 50 | 14 |
5.2%
|
|
| 60 | 1 |
0.4%
|
|
| 75 | 2 |
0.7%
|
|
| Sysmiss | 211 |